@article{MOMA_1958__62_177042,
     author = {Ky Fan},
     title = {Topological {Proofs} for {Certain} {Theorems} on {Matrices} with {Non-Negative} {Elements.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {219--237},
     publisher = {mathdoc},
     volume = {62},
     year = {1958},
     zbl = {0081.25104},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1958__62_177042/}
}